# US 11,298,300 B2 · Stable Pickering-type emulsions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,298,300 B2 - Document ID: US11298300B2 - Status: Granted - Kind: B2 - Application number: 16/807,272 - Filed: 2020-03-03 - Published: 2021-09-09 - Granted: 2022-04-12 - Earliest claimed: 2020-03-03 - Assignees: Ciella James LLC - Applicants: Ciella James LLC - Inventors: Denise Kilburg - Web page: https://patentgrep.com/patent/US11298300B2 ## CPC - A61K 8/06: Emulsions - A61K 8/345: {containing more than one hydroxy group} - A61K 8/361: {Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof} - A61K 8/4973: {with oxygen as the only hetero atom} - A61K 8/60: Sugars; Derivatives thereof - A61K 2800/10: General cosmetic use - A61K 2800/21: Emulsions characterized by droplet sizes below 1 micron - A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D) ## Abstract The present disclosure provides stable Pickering-type emulsions comprising glycerin and oil, as well as methods of manufacturing the same. In some aspects, such emulsions further comprise magnesium stearate and a non-ionic surfactant as co-emulsifiers. ## Claims ### Claim 1 A Pickering-type emulsion, comprising: a discontinuous internal phase, wherein the internal phase comprises a polyol in an amount of from about 15% to about 30% by weight of the entire emulsion; a continuous external oil phase, in an amount of from about 55% to about 85% by weight of the entire emulsion; and an emulsifier, wherein the emulsifier comprises magnesium stearate. ### Claim 2 (depends on 1) The Pickering-type emulsion of claim 1, wherein the polyol is selected from the group consisting of ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, sorbitol, and diethylene glycol. ### Claim 3 (depends on 1) The Pickering-type emulsion of claim 1, wherein the polyol is glycerin. ### Claim 4 (depends on 1) The Pickering-type emulsion of claim 1, further comprising sorbitan olivate as a co-emulsifier. ### Claim 5 (depends on 1) The Pickering-type emulsion of claim 1, wherein the discontinuous internal phase comprises spherical droplets having a diameter of 10-40 μm. ### Claim 6 (depends on 1) The Pickering-type emulsion of claim 1, wherein the magnesium stearate is present in an amount of 1-3% by weight of the entire emulsion. ### Claim 7 (depends on 6) The Pickering-type emulsion of claim 6, further comprising sorbitan olivate as a co-emulsifier in an amount of 1-3% by weight of the entire emulsion. ### Claim 8 (depends on 7) The Pickering-type emulsion of claim 7, wherein the emulsion is stable for at least 48 hours at 60° C., displaying no visible phase separation. ### Claim 9 (depends on 7) The Pickering-type emulsion of claim 7, wherein the emulsion is stable for at least 6 months at room temperature, displaying no visible phase separation. ### Claim 10 (depends on 1) The Pickering-type emulsion of claim 1, wherein the magnesium stearate is localized to the interface between the discontinuous internal phase and the continuous external oil phase. ### Claim 11 A Pickering-type emulsion, comprising: a discontinuous internal phase, wherein the internal phase comprises an oil in an amount of from about 5% to about 65% by weight of the entire emulsion; a continuous external polyol phase, in an amount of from about 35% to about 95% by weight of the entire emulsion; and an emulsifier, wherein the emulsifier comprises magnesium stearate. ### Claim 12 (depends on 11) The Pickering-type emulsion of claim 11, wherein the polyol is selected from the group consisting of ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, sorbitol, and diethylene glycol. ### Claim 13 (depends on 11) The Pickering-type emulsion of claim 11, wherein the polyol is glycerin. ### Claim 14 (depends on 11) The Pickering-type emulsion of claim 11, further comprising sorbitan olivate as a co-emulsifier. ### Claim 15 (depends on 11) The Pickering-type emulsion of claim 11, wherein the discontinuous internal phase comprises spherical droplets having a diameter of 10-40 μm. ### Claim 16 (depends on 11) The Pickering-type emulsion of claim 11, wherein the magnesium stearate is present in an amount of 1-3% by weight of the entire emulsion. ### Claim 17 (depends on 16) The Pickering-type emulsion of claim 16, further comprising sorbitan olivate as a co-emulsifier in an amount of 1-3% by weight of the entire emulsion. ### Claim 18 (depends on 17) The Pickering-type emulsion of claim 17, wherein the emulsion is stable for at least 48 hours at 60° C., displaying no visible phase separation. ### Claim 19 (depends on 18) The Pickering-type emulsion of claim 18, wherein the emulsion is stable for at least 6 months at room temperature, displaying no visible phase separation. ### Claim 20 (depends on 11) The Pickering-type emulsion of claim 11, wherein the magnesium stearate is located at the interface between the discontinuous internal phase and the continuous external polyol phase.